SPATIO-TEMPORAL DYNAMICS OF CONTENT OF PETROLEUM PRODUCTS HYDROCARBONS IN SOILS OF URBAN LANDSCAPE OF ARKHANGELSK

DOI: 
10.6060/tcct.20165910.5376

Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol. 2016. V. 59. N 10. P. 88-94

Petroleum hydrocarbons occupy a special place among priority pollutants. The pollu-tion of urban soils by petroleum hydrocarbons is the inevitable result of the use of auto transport and heat-and-power enterprises activity. Contact with the soil petroleum hydrocar-bons causes a change in their physical, chemical and biological properties, disrupting the flow of natural biochemical processes. The article analyzes the spatio-temporal dynamics pe-troleum hydrocarbons content in soils of urban zone of the city of Arkhangelsk. As the object of study different types of soil (replantozem, urbanozem and kulturozem) in urban zone of the city of Arkhangelsk were chosen. Soil samples were selected on the 15 sampling areas in spring, summer and autumn of 2014. Petroleum hydrocarbons content in selected soil sam-ples was evaluated by fluorimetric method on the analyzer "Fluorat-02". The evaluation of the degree of contamination of soils by petroleum hydrocarbons has been assessed. It was found that soils in urban zone of the city of Arkhangelsk have a high pollution degree by pe-troleum hydrocarbons. Average content of petroleum hydrocarbons in the soils of the city of Arkhangelsk ranges from 466.20 to 1342.2 mg / kg and depends on the time of year.The analysis of experimental data showed the highest content of petroleum hydrocarbons in the soils is observed in summer and autumn, the smallest - in the spring. This seasonal dynamics maybe cause with seasonal climatic changes, washing water regime of investigated soils, fractional compounds of petroleum hydrocarbons. At the same time, Arkhangelsk’s soils are characterized surface and profile contaminations by petroleum hydrocarbons, but the accu-mulation of the NP occurs mainly in the surface layer. Accumulation capacity of the different types of soils decreases in the series: replantozem →urbanozem → kulturozem.

Key words: petroleum products hydrocarbons, soil, urban landscape

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2016, Т. 59, № 10, Стр. 88-94

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